LS = ["HIMALAYA", "NILGIRI", "ALASKA", "ALPS"]
D = {}
for S in LS:
if len(S) % 4 == 0:
D[S] = len(S)
for K in D:
print(K, D[K], sep = "#")
Output:
HIMALAYA#8
ALPS#4
Explanation:
The list LS contains the strings: ["HIMALAYA", "NILGIRI", "ALASKA", "ALPS"].
The code iterates through each string in LS. If the length of the string is divisible by 4, it adds the string as a key and its length as the value in dictionary D.
The dictionary after execution becomes: {"HIMALAYA": 8, "ALPS": 4}.
Finally, the dictionary keys and values are printed with a # separator.
HIMALAYA#8
ALPS#4

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?